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1. Diagnose on site
We identify gearbox wear, failed spindles, cylinder issues and alignment — including cases where the door has dropped off hinges.
Door & window lock repairs
Secure, smooth-locking doors and windows — we repair and replace multi-point locks and handles on uPVC across South Wales.
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Security and convenience restored
Faulty locks are both a security risk and a daily frustration. We work on uPVC doors and windows with multi-point locking: diagnose the mechanism, source the right gearboxes, cylinders and keeps, and complete the repair on site. We cover Newport, Cardiff, Cwmbran, Caerphilly, Chepstow and South Wales.
How we repair door and window locks
Clear diagnosis first — then the correct parts fitted and tested so rollers, hooks and bolts meet the keeps without forcing the handle.
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2. Specify correct parts
Strips, gearboxes and cylinders are not universal — we match back to the existing rail height and handing where replacements are still manufactured.
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3. Alignment & keeps
Striker plates and keeps adjusted so rollers and hooks engage fully — reducing strain on the handle and extending the life of new gear.
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4. Test & handover
Smooth lift-lock cycle, key turnaround and snib operation where fitted — we confirm you are happy before we leave.
Why address lock faults early?
Forcing a failing gearbox can snap spindles or damage keeps. Early repair often limits cost and restores confidence in your home’s security.
Security first
Partially engaging multi-points may leave the door looking closed while bolts are not fully home — we restore positive engagement.
Daily ease
No more shoulder against the door to lift the handle — correct gear and alignment makes locking predictable.
Sensible spend
Targeted gearbox or cylinder replacement is usually far below a new door when the slab and hinges are sound.
Transparent options
If the chassis is worn beyond economical repair, we discuss replacement doors with clear reasoning.
Locks and upgrades we handle
Residential uPVC entrance, French and patio doors — plus window espag and shootbolt lines where we can source matching hardware.
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Multi-point uPVC doors
Strip and gearbox swaps, roller and hook sets, keeps and striker alignment after settlement.
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Cylinders & barrels
Replacement keyed alike options and security-rated cylinders quoted against your insurer or preference.
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Window locking
Espag handles, shootbolts and night-vent stops where they interact with the lock line after hinge wear.
Planned jobs and urgent cases
Some failures need same-day priority — others suit a booked visit with parts ordered ahead.
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Booked repairs
Ideal when you can still secure the property — we order specific gearboxes or odd-handed strips with fewer return visits.
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Urgent security risk
Call 01554 701200 — we prioritise cannot-lock / cannot-open scenarios where our coverage allows.
Technical specification
Survey, security & documentation
We do not fit “nearest guess” gear on entrance doors — incorrect backsets and rail heights cause rapid repeat failure and insurance headaches.
To your mechanism
Rail height, handing and keeper layout taken from the existing strip before we order complex gearboxes.
Cylinders & standards
Upgrade paths explained where you want TS-rated or anti-snap cylinders — fitted with correct protrusion and strike alignment.
Holistic fix
Door dropped? We coordinate hinge correction so locks stay in adjustment after we leave.
Written quote
Parts, labour, warranty assumptions and exclusions listed before you commit — no surprise extras for agreed scope.
Lock repair FAQs
Can you repair multi-point door locks?
Yes. We diagnose gearbox, strip and locking points where needed and fit the correct replacement parts for your door type.
Is this an emergency service?
We prioritise security-related failures where we can. Call 01554 701200 and we will advise availability.
Do you replace cylinders?
Yes — including security upgrades where you want better resistance to common attack methods; options quoted on site.
The handle spins but won’t lock — why?
Often a failed gearbox or broken linkage between handle and strip. We strip on site, confirm the failure mode and quote the right fix.
Do hinge issues affect locks?
Yes. A dropped door may not throw bolts into keeps. We can pair with hinge repairs when needed.
Can you work on patio and French door locks?
Many inline and lift-lever patio sets are in scope — we confirm rail type and keep positions at survey.
Lock or security issue?
Call for urgent cases — otherwise use the form. We diagnose multi-point gearboxes and cylinders on uPVC doors and windows. We aim to respond within 24 hours.